JPS61186229A - Mold device for glass vessel former - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molding apparatus for use in a cyclically operated glassware forming machine, which apparatus forms the bottom part of the hollow part of a mold to be formed by the operation of a melting Karaska machine. a mold having a bottom plate and two side portions forming the sides of the hollow portion, each side portion having one side portion that is connected to the bottom plate and the other side portion during a cycle of operation of the machine. a first position for engaging and cooperatively shaping the mold cavity to effect the molding; and a second position for each side portion to separate to permit removal of the molded glass from the mold cavity. , and the side portions also define cooling passages extending upwardly through the portions, through which air can cool the side portions; The cooling passage in also has an inlet at the bottom of the side portion. The molding apparatus also includes a high pressure chamber extending below the first or second location of each side portion and having one or more outlets; is open upwardly and communicates with the inlet of the cooling passage either directly or through a 1 m vertical passage in the bottom plate when the side portion is at the top of the high pressure chamber so that air is supplied to each cooling passage at approximately the same pressure. It has become. The hyperbaric chamber also has an inlet connected to an air supply device operable to blow air into the hyperbaric chamber. An example of such a molding device is described in detail in European Patent Application No. 0102820. In such molding equipment, the passages in the side portions of the mold are supplied with cooling air at approximately equal pressures so that they can have an even flow pattern.

Although the prior molding apparatus has been shown to be very successful in use, it may not be able to provide adequate cooling to all parts of the mold. For example, if large diameter or wide containers are to be manufactured, the thickness of the mold near the join line on the side portions of the mold may be such that the mold can fit over the defined center of the machine where the molding equipment is being used. In order to be able to do so, it must be limited. This is usually done by cutting the side part of the mold in a plane approximately perpendicular to the joining line of this side part. This has the consequence that the mold thickness in this area is often insufficient to enable cooling channels of sufficient size to provide adequate cooling. Another example is
Manufacture of fairly large bottles in molds containing one or more mold cavities in which there is a web of metal between two air-conditioning sections, which is often thin and so that relatively large cooling channels cannot be provided in this area. It is.

It is an object of the present invention to provide a molding device in which adequate cooling can be carried out in areas where this cannot currently be done with the above-mentioned molding devices.

The present invention provides a molding device for use in a glassware forming machine that operates periodically. a mold having a bottom plate forming a shape and two side portions forming sides of the hollow portion;
Each side portion is designed to form a hollow portion of the molding 1 such that during a cycle of operation of the machine, one side portion engages and cooperates with the bottom plate and the other side portion to effect molding. 1 position and a second position in which each side part separates and removes the molded glass from the mold cavity, and the side parts also move this part upwardly. The cooling passages extending through each side section also have an inlet at the bottom of the side section, through which air passes to cool the side sections. and the molding apparatus also includes a high pressure chamber, the high pressure chamber being located at the first portion of each side portion.
or extending below the second location and having one or more outlets which are open upwardly and directly or directly into the bottom plate when the side portion is above the hyperbaric chamber. Connected to the inlet of the cooling path through the vertical passage of IF! air is supplied to each cooling passage at approximately the same pressure; the hyperbaric chamber also has an inlet connected to an air supply device operable to blow air into the hyperbaric chamber; in which the one or more outlets of the hyperbaric chamber are formed in a distribution plate extending above the hyperbaric chamber and below the base plate, the one or more outlets of the hyperbaric chamber being formed in a distribution plate extending above the hyperbaric chamber and below the bottom plate, an addition for blowing air into the air supply passage. additional cooling of one or more of the side parts, formed by an air supply and a distribution plate and open upwards, directly or through vertical passages in the bottom plate, when the side parts are above the high-pressure chamber. It is characterized in that at least one air supply channel extends through the thickness of the distribution plate from the connection with the outlet communicating with the channel.

In the Mole 1 device described later above, the additional air supply device can be operated at a higher pressure than the first mentioned air supply device, so that the cooling air passing through the additional cooling path is lower than that in the first mentioned cooling path. This will result in a larger flow. Thus, a greater cooling effect can be achieved with passages of the same diameter, ie the same cooling effect can be achieved with passages of smaller diameter.

Thus, additional passages can be placed in areas where there is insufficient space for cooling passages of larger diameter to provide the same or greater cooling effect.

In order to reduce the influence of a thicker distribution plate on the cooling passage supplied with air from the high pressure chamber, the distribution plate may have a reduced thickness in the area where the outlet of the high pressure chamber is formed. The pressure of the additional air supply can be adjusted to provide adequate cooling, and the amount of cooling can be controlled by using a valve to switch the air supply on and off as required. be.

Hereinafter, the present invention will be described in detail based on the drawings, but it goes without saying that the molding device shown in the drawings is merely an example for the convenience of explanation and does not limit the present invention.

The molding apparatus shown in the drawing consists of two identical molds 1
0, but only one of the molds is shown in detail in the figure.

The molds 10 are arranged side by side along the longitudinal axis of a portion of a periodically operating glassware forming machine of individual section types. The illustrated molding device is mounted on a machine frame (not shown) as shown in FIG. 4 of the aforementioned European Patent Specification No. 0102820. Each mold 10 has a mold cavity 1 of the mold FIO.
4 and a bottom plate I2 defining a bottom portion of the cavity in which the molten glass is molded by mechanical operation. The mold 10 also includes two side portions 16 and 18 which cooperate to provide mold action as each side portion 16 and 18 in conjunction with the bottom plate 12 and the other side portion define a mold air conditioner. is movable into its first position (as shown in the figure) in which it is adapted to allow the operation to take place. When the side parts 16 and 18 are in their first position, the tongue 17 of the part 16 enters the slot 19 of the part 1B to define the position of the parts 16 and 18 with respect to each other. Side portions 16 and 18 are also movable to a second position that separates the side portions so that molten glass can be removed from mold cavity 14. The side parts are moved directly from each other's position to a second position by known means.

Side portions 16 and 18 also each define a plurality of cooling passages 20 which extend through side portions 16 and 18 in one direction. Air passes through these cooling passages 20 to cool the side portions 16 and 18.

Each cooling passage 20 has an entrance at the bottom 22 of the side portions 16 and 18 in which the passage is formed.

The illustrated molding apparatus also includes two high pressure chambers 24 (similar to the high pressure chambers 128 and 130 shown in FIG. 4 of the above-mentioned Rorosova patent specification 0102820). Each high pressure chamber 24 extends below a first position of each of the side portions 16 and 18 of one of the molds 10 . However, in a molding apparatus similar to that shown, a high pressure chamber may be provided extending below the second position of the side portions 16 and 18. Each hyperbaric chamber 2
4 is partitioned at its top by a distribution plate 26 of the mall 1 device extending above the art pressure chamber 24 and below the bottom plate 12, and the bottom plate 12 is installed at the top of the distribution plate 26 LJ.

The distribution plate 26 is fixed to the side wall 25 of the high pressure chamber 24 by screws 27. Distribution plate 26 defines a plurality of outlets from each high pressure chamber 24 , one outlet for each cooling passage 20 . However, it is possible to provide only one outlet from the high pressure chamber in the form of a slot, which would correspond to all cooling channels 20 in one mold 10. Each outlet 28 of the hyperbaric chamber is formed in a reduced thickness area 30 (see FIG. 3) of the distribution plate 26 so that the outlet 28
8 to facilitate the flow of air from the high pressure chamber 24 through the high pressure chamber 24.

Each outlet of each hyperbaric chamber 24 is open to one side, and
This outlet 28 has side portions 16 and 18 in their first
When located above the high pressure chamber at the position , it communicates with the inlet of one cooling passage 20 via the vertical passage 32 of the bottom plate 12 .

However, in some cases, the outlet 28 may communicate directly with the inlet of the passageway 20, if the shapes of the base plate and side portions 16 and 18 permit. The illustrated molding apparatus also includes an air supply device (not shown) in the form of a fan operable to blow air into the inlet (not shown) of each high pressure chamber 24.
, and this air is supplied to each cooling passage 20 via outlet 28 at approximately the same pressure. The air then passes upwardly through the cooling 820 and exits to the atmosphere through the two-sided cooling passage exits of side sections 16 and 18.

Each bottom plate 12 is attached to the distribution plate 26 by an adapter 34.
This adapter 34 is provided in a hole that passes through the distribution plate 26, and is inserted into the recess 3 at the bottom of the bottom plate 12.
6 is accepted.

The recesses 36 are connected to passages 38 in the bottom plate, through which air can be extracted from the mold. Air is drawn into the recess 36 via passage 38 and then via passage 40 to adapter 34 which communicates with a vacuum pipe 42 extending i1 m through high pressure chamber 24.

An air supply passage 50 formed by inserting a tube 51 into a hole in the distribution plate 26 has an outlet 52 formed by the distribution plate 26 and an additional air supply device operative to blow air into the air supply passage 50. extending through the thickness of the distribution plate from a connection portion (not shown) with the outlet 52, which is open upwardly;
This outlet communicates with an additional cooling passage 60 in the side part 16 via a vertical passage 54 in the bottom plate 12 when the side part 16 is above the high pressure chamber. In some cases, the outlet 52 may communicate directly with the passageway 60 if the arrangement allows for the omission of the vertical passageway 54. As can be seen in FIG. 1, the mold cavity 14 is egg-shaped and the additional cooling passages 60 are in a thin section of the mold adjacent to the joining line of the side sections 16 and 18. When the illustrated molding apparatus is in use, the additional air supply provides a higher pressure in the passageway 50 than is provided in the high pressure chamber 24, so that more air is available in the cooling passageway 60 than is available in the cooling passageway 20. Flow is obtained and more cooling occurs in the area of cooling passages 60.

The pressure provided by the supplemental air supply can be varied to adjust the cooling effect in supplying or not supplying air to the passages 50 during each cycle of machine operation.

Furthermore, A-1 in which the pipe 71 is provided in the hole of the distribution plate 26
The additional air supply passage 70 has a connection (not shown) between the outlet lower 2 formed by the distribution plate 26 and a further air supply device (not shown) which operates to blow air into this passage 70. The lower outlet 2 is opened in one direction, and the outlet extends from the center to the thickness of the distribution plate 26.
When the side part 18 is above the high pressure chamber 24, it is in communication 111L with three additional cooling passages 80 formed in the side part 18 through the vertical passages 74 of the bottom plate 12. The lower outlet 2 is in the form of a slot and communicates with three vertical passages 74 in the bottom plate 12 (see FIG. 1), which in turn connect to vertical passages 80.
It communicates with the three vertical portions 80a of. Each part 80a
communicates with a sloped portion 80b that extends inwardly toward mold hollow 14 and 1ffl channel 8.
0 vertical portion 80c. The device has each cooling path 8
0 extends upwardly to a point at level 2 of the top of the bottom plate 12 and then inwardly to a point where it abuts the mold cavity 14, and then extends upwardly to an outlet formed in the upper surface of the mold portion 1B. It has a structure that makes it look like there are.

Passages 80 are used in the same manner as passages 60 to serve to enhance cooling of the area in which they are formed. The ability to bring high air pressure to just a few cooling passages in a mold also makes it possible to use non-straight cooling passages, thus eliminating the need to force air throughout the passages through non-straight passages. Cooling can now be achieved in difficult areas without using the high pressures applied, which waste energy and make considerable noise.

[Brief explanation of drawings]

FIG. 1 is a plan view of the molding device shown in the example, FIG. 2 is a cross-sectional view taken along line nn in FIG. 1, and FIG. 3 is a cross-sectional view taken along line m-m in FIG. 1. FIG. DESCRIPTION OF SYMBOLS 10... Mold, 12... Bottom plate, 14... Mold hollow part, 16.18... Side part, 17... Tongue piece, 19... Slot, 20... Cooling path, 22 ...
Bottom surface, 24... High pressure chamber, 26... Distribution plate, 25...
- Side wall, 27... Screw, 30... Thickened reduced area, 28... Outlet, 34... Adapter, 36...
Hollow, 38. 40... Passage, 42... Vacuum pipe, 50... Air supply path, 51... Tube, 52... Outlet, 54... Vertical path, 60... Additional cooling Road.

Claims (2)

[Claims] (1) In a molding device used in a periodically operated glassware forming machine, the bottom plate 12 forming the bottom part of the hollow part 14 of the mold 10 in which molten glass is formed by machine operation, and the side of the hollow part The mold 10 has two side parts 16, 18 forming a part, each side part engaging and cooperating with the bottom plate and the other side part during the operating cycle of the machine. movable between a first position in which the mold cavity is shaped so that the molding can be carried out and a second position in which the side portions are separated and the molded glass is removed from the mold cavity. and the side portions also form cooling passages 20 passing upwardly through the portions, through which air can cool the side portions, and the cooling passages in each side portion. Also, the bottom surface 22 of the part
and a high pressure chamber 24 extending below the first or second location of each side portion and having one or more outlets 28; The outlet opens upwardly and, when the side portion is above the high pressure chamber, communicates with the inlet of the cooling passage either directly or through a vertical passage 32 in the bottom plate, so that air is supplied to each cooling passage at approximately the same pressure. the hyperbaric chamber also has an inlet connected to an air supply device operable to blow air into the hyperbaric chamber, and the one or more outlets 28 of the hyperbaric chamber 24 are configured to an additional air supply device for blowing air into the air supply passage; shaped and opened upwards,
Directly or when the side part is above the hyperbaric chamber or the bottom plate (5
4; 74) to the thickness of the distribution plate 26 from its connection with the outlet (52; 72) which communicates with one or more additional cooling channels (60; Mold device, characterized in that at least one air supply channel (50; 70) extends. (2) The distribution plate 26 is characterized in that its thickness is reduced in the region 30 in which one or more outlets 28 of the hyperbaric chamber are formed. mold equipment.